====== Electricity grid cost ======
The replacement cost of the Swiss electricity grid is 60 billions CHF <sup>[[#References|[1]]]</sup> and its life time is 80 years <sup>[[#References|[2]]]</sup>.

The electricity grid will need additional investment depending on the penetration level of the decentralized and stochastic electricity production technologies. AES(2012) <sup>[[#References|[1]]]</sup> presents three scenarios with different percentages of renewable energy sources with their consequent different development costs for the electricity grid.

^  Total investment for electricity grid development [billion CHF]  ^^^^
^ ^  2011-2050  ^^^
^ ^Scenario 1^Scenario 2^Scenario 3^
^High voltage grid |2.6 |2.6 |2.6 |
^Medium&Low voltage grid |2.4 |5.5 |9.6 |

For choosing the scenario, the calculator compares the percentages of PV and Wind in the electricity mix of the three scenarios with the electricity mix of the calculator. 
 

===== References =====
[1] [[http://www.strom.ch/uploads/media/AES_Scenarios-app-electrique-futur_Rapport-global_2012.pdf|AES (2012), Scénarios pour l’approvisionnement électrique du futur, Rapport global.]]

[2] [[http://www.parlament.ch/f/suche/pages/geschaefte.aspx?gesch_id=20103348|L'Assemblée fédérale - Le Parlement suisse (2010), Sécuriser notre réseau de transmission et de distribution d'électricité]]